' All of the Quick Play logic seperated by media type
namespace quickplay

    ' Takes an array of items and adds to global queue.
    ' Stop loading items if memory level becomes low
    sub pushToQueue(queueArray as object, limitValue = 200 as integer)
        if isValidAndNotEmpty(queueArray)
            itemCount = queueArray.count()
            if limitValue >= itemCount
                ' load everything
                for each item in queueArray
                    m.global.queueManager.callFunc("push", item)
                end for
            else
                newLimit = limitValue
                for i = 0 to itemCount - 1
                    m.global.queueManager.callFunc("push", queueArray[i])

                    if i = newLimit
                        ' hit the item limit. check memory level
                        newLimit = newLimit + limitValue
                        print "m.global.session.memoryLevel=", m.global.session.memoryLevel
                        if m.global.session.memoryLevel = "low" or m.global.session.memoryLevel = "critical"
                            print "Memory is low. Stop loading items in the playlist..."
                            exit for
                        end if
                    end if
                end for
            end if
        end if
    end sub

    ' A single video file.
    sub video(itemNode as object)
        if not isValid(itemNode) or not isValid(itemNode.id) or not isValid(itemNode.json) then return

        ' attempt to play video file. resume if possible
        if isValid(itemNode.selectedVideoStreamId)
            itemNode.id = itemNode.selectedVideoStreamId
        end if

        audio_stream_idx = 0
        if isValid(itemNode.selectedAudioStreamIndex) and itemNode.selectedAudioStreamIndex > 0
            audio_stream_idx = itemNode.selectedAudioStreamIndex
        end if
        itemNode.selectedAudioStreamIndex = audio_stream_idx

        playbackPosition = 0
        if isValid(itemNode.json.userdata) and isValid(itemNode.json.userdata.PlaybackPositionTicks)
            playbackPosition = itemNode.json.userdata.PlaybackPositionTicks
        end if
        itemNode.startingPoint = playbackPosition

        m.global.queueManager.callFunc("push", itemNode)
    end sub

    ' A single audio file.
    sub audio(itemNode as object)
        if not isValid(itemNode) or not isValid(itemNode.id) then return

        m.global.queueManager.callFunc("push", itemNode)
    end sub

    ' A music album.
    ' Play the entire album starting with track 1.
    sub album(itemNode as object)
        if not isValid(itemNode) or not isValid(itemNode.id) then return

        ' grab list of songs in the album
        albumSongs = api.users.GetItemsByQuery(m.global.session.user.id, {
            "parentId": itemNode.id,
            "imageTypeLimit": 1,
            "sortBy": "SortName",
            "enableUserData": false,
            "EnableTotalRecordCount": false
        })
        if isValid(albumSongs) and isValidAndNotEmpty(albumSongs.items)
            ' add every song to the queue
            for each song in albumSongs.items
                m.global.queueManager.callFunc("push", song)
            end for
        end if
    end sub

    ' A music artist.
    ' Shuffle play all songs by artist.
    sub artist(itemNode as object)
        if not isValid(itemNode) or not isValid(itemNode.id) then return

        ' get all songs by artist
        artistSongs = api.users.GetItemsByQuery(m.global.session.user.id, {
            "artistIds": itemNode.id,
            "includeItemTypes": "Audio",
            "sortBy": "Album",
            "imageTypeLimit": 1,
            "Recursive": true,
            "enableUserData": false,
            "EnableTotalRecordCount": false
        })
        print "artistSongs=", artistSongs

        if isValid(artistSongs) and isValidAndNotEmpty(artistSongs.items)
            pushToQueue(artistSongs.items)

            ' don't show shuffle icon for 1 song
            if artistSongs.items.count() > 1
                m.global.queueManager.callFunc("toggleShuffle")
            end if
        end if
    end sub

    ' A boxset.
    ' Shuffle play all items inside.
    sub boxset(itemNode as object)
        if not isValid(itemNode) or not isValid(itemNode.id) then return

        data = api.items.GetByQuery({
            "userid": m.global.session.user.id,
            "parentid": itemNode.id,
            "EnableTotalRecordCount": false
        })
        if isValid(data) and isValidAndNotEmpty(data.Items)
            ' there are videos inside
            pushToQueue(data.items)
        end if
    end sub

    ' A TV Show Series.
    ' Play the first unwatched episode.
    ' If none, shuffle play the whole series.
    sub series(itemNode as object)
        if not isValid(itemNode) or not isValid(itemNode.id) then return

        data = api.shows.GetNextUp({
            "seriesId": itemNode.id,
            "recursive": true,
            "SortBy": "DatePlayed",
            "SortOrder": "Descending",
            "ImageTypeLimit": 1,
            "UserId": m.global.session.user.id,
            "EnableRewatching": false,
            "DisableFirstEpisode": false,
            "EnableTotalRecordCount": false
        })

        if isValid(data) and isValidAndNotEmpty(data.Items)
            ' there are unwatched episodes
            for each item in data.Items
                m.global.queueManager.callFunc("push", item)
            end for
        else
            ' next up check was empty
            ' check for a resumable episode
            data = api.users.GetResumeItemsByQuery(m.global.session.user.id, {
                "parentId": itemNode.id,
                "userid": m.global.session.user.id,
                "SortBy": "DatePlayed",
                "recursive": true,
                "SortOrder": "Descending",
                "Filters": "IsResumable",
                "EnableTotalRecordCount": false
            })
            print "resumeitems data=", data
            if isValid(data) and isValidAndNotEmpty(data.Items)
                ' play the resumable episode
                for each item in data.Items
                    if isValid(item.UserData) and isValid(item.UserData.PlaybackPositionTicks)
                        item.startingPoint = item.userdata.PlaybackPositionTicks
                    end if
                    m.global.queueManager.callFunc("push", item)
                end for
            else
                ' shuffle all episodes
                data = api.shows.GetEpisodes(itemNode.id, {
                    "userid": m.global.session.user.id,
                    "SortBy": "Random",
                    "EnableTotalRecordCount": false
                })

                if isValid(data) and isValidAndNotEmpty(data.Items)
                    ' add all episodes found to a playlist
                    pushToQueue(data.Items)
                end if
            end if
        end if
    end sub

    ' A TV Show Season.
    ' Play the first unwatched episode.
    ' If none, play the whole season starting with episode 1.
    sub season(itemNode as object)
        if not isValid(itemNode) or not isValid(itemNode.id) then return

        unwatchedData = api.shows.GetEpisodes(itemNode.json.SeriesId, {
            "seasonId": itemNode.id,
            "userid": m.global.session.user.id,
            "EnableTotalRecordCount": false
        })

        if isValid(unwatchedData) and isValidAndNotEmpty(unwatchedData.Items)
            ' find the first unwatched episode
            firstUnwatchedEpisodeIndex = invalid
            for each item in unwatchedData.Items
                if isValid(item.UserData)
                    if isValid(item.UserData.Played) and item.UserData.Played = false
                        firstUnwatchedEpisodeIndex = item.IndexNumber - 1
                        if isValid(item.UserData.PlaybackPositionTicks)
                            item.startingPoint = item.UserData.PlaybackPositionTicks
                        end if
                        exit for
                    end if
                end if
            end for

            if isValid(firstUnwatchedEpisodeIndex)
                ' add the first unwatched episode and the rest of the season to a playlist
                for i = firstUnwatchedEpisodeIndex to unwatchedData.Items.count() - 1
                    m.global.queueManager.callFunc("push", unwatchedData.Items[i])
                end for
            else
                ' try to find a "continue watching" episode
                continueData = api.users.GetResumeItemsByQuery(m.global.session.user.id, {
                    "parentId": itemNode.id,
                    "userid": m.global.session.user.id,
                    "SortBy": "DatePlayed",
                    "recursive": true,
                    "SortOrder": "Descending",
                    "Filters": "IsResumable",
                    "EnableTotalRecordCount": false
                })

                if isValid(continueData) and isValidAndNotEmpty(continueData.Items)
                    ' play the resumable episode
                    for each item in continueData.Items
                        if isValid(item.UserData) and isValid(item.UserData.PlaybackPositionTicks)
                            item.startingPoint = item.userdata.PlaybackPositionTicks
                        end if
                        m.global.queueManager.callFunc("push", item)
                    end for
                else
                    ' play the whole season in order
                    if isValid(unwatchedData) and isValidAndNotEmpty(unwatchedData.Items)
                        ' add all episodes found to a playlist
                        pushToQueue(unwatchedData.Items)
                    end if
                end if
            end if
        end if
    end sub

    ' Quick Play A Playlist.
    ' Play the first unwatched episode.
    ' If none, play the whole season starting with episode 1.
    sub playlist(itemNode as object)
        if not isValid(itemNode) or not isValid(itemNode.id) then return
        ' get playlist items
        myPlaylist = api.playlists.GetItems(itemNode.id, {
            "userId": m.global.session.user.id
        })

        if isValid(myPlaylist) and isValidAndNotEmpty(myPlaylist.Items)
            ' add each item to the queue
            pushToQueue(myPlaylist.Items)
            m.global.queueManager.callFunc("toggleShuffle")
        end if
    end sub

    ' Quick Play A folder.
    ' Shuffle play all items found
    sub folder(itemNode as object)
        if not isValid(itemNode) or not isValid(itemNode.id) then return
        print "itemNode.json=", itemNode.json

        paramArray = {
            "includeItemTypes": ["Audio", "Episode", "Movie", "Video"],
            "videoTypes": "VideoFile",
            "sortBy": "Random",
            "imageTypeLimit": 1,
            "Recursive": true,
            "enableUserData": false,
            "EnableTotalRecordCount": false
        }
        ' modify api query based on folder type
        folderType = Lcase(itemNode.json.type)
        if folderType = "studio"
            paramArray["studioIds"] = itemNode.id
        else if folderType = "genre"
            paramArray["genreIds"] = itemNode.id
        else
            paramArray["parentId"] = itemNode.id
        end if
        ' get folder items
        folderData = api.users.GetItemsByQuery(m.global.session.user.id, paramArray)
        print "folderData=", folderData

        if isValid(folderData) and isValidAndNotEmpty(folderData.items)
            pushToQueue(folderData.items)

            ' don't show shuffle icon for 1 item
            if folderData.items.count() > 1
                m.global.queueManager.callFunc("toggleShuffle")
            end if
        end if
    end sub

    ' Quick Play A CollectionFolder.
    ' Shuffle play the items inside
    ' with some differences based on collectionType.
    sub collectionFolder(itemNode as object)
        if not isValid(itemNode) or not isValid(itemNode.id) then return
        ' play depends on the kind of files inside the collectionfolder
        print "attempting to quickplay a collection folder"
        collectionType = LCase(itemNode.collectionType)
        print "collectionType=", collectionType

        if collectionType = "movies"
            ' get randomized list of movies inside
            data = api.users.GetItemsByQuery(m.global.session.user.id, {
                "parentId": itemNode.id
            })

            if isValid(data) and isValidAndNotEmpty(data.items)
                ' add each item to the queue
                for each item in data.Items
                    ' only add movies we're not currently watching
                    if isValid(item.userdata) and isValid(item.userdata.PlaybackPositionTicks)
                        if item.userdata.PlaybackPositionTicks = 0
                            m.global.queueManager.callFunc("push", item)
                        end if
                    end if
                end for
                m.global.queueManager.callFunc("toggleShuffle")
            end if
        else if collectionType = "music"
            ' get all audio files under this collection
            ' sort songs by album then artist
            songsData = api.users.GetItemsByQuery(m.global.session.user.id, {
                "parentId": itemNode.id,
                "includeItemTypes": "Audio",
                "sortBy": "Album",
                "Recursive": true,
                "imageTypeLimit": 1,
                "enableUserData": false,
                "EnableTotalRecordCount": false
            })
            print "songsData=", songsData
            if isValid(songsData) and isValidAndNotEmpty(songsData.items)
                pushToQueue(songsData.Items)
                if songsData.Items.count() > 1
                    m.global.queueManager.callFunc("toggleShuffle")
                end if
            end if
        else if collectionType = "boxsets"
            ' get list of all boxsets inside
            boxsetData = api.users.GetItemsByQuery(m.global.session.user.id, {
                "parentId": itemNode.id,
                "imageTypeLimit": 0,
                "enableUserData": false,
                "EnableTotalRecordCount": false,
                "enableImages": false
            })

            print "boxsetData=", boxsetData

            if isValid(boxsetData) and isValidAndNotEmpty(boxsetData.items)
                ' pick a random boxset
                arrayIndex = Rnd(boxsetData.items.count()) - 1
                myBoxset = boxsetData.items[arrayIndex]
                ' grab list of items from boxset
                print "myBoxset=", myBoxset
                boxsetData = api.users.GetItemsByQuery(m.global.session.user.id, {
                    "parentId": myBoxset.id,
                    "EnableTotalRecordCount": false
                })

                if isValid(boxsetData) and isValidAndNotEmpty(boxsetData.items)
                    ' add all boxset items to queue
                    pushToQueue(boxsetData.Items)
                end if
            end if
        else if collectionType = "tvshows"
            ' get list of tv shows inside
            tvshowsData = api.users.GetItemsByQuery(m.global.session.user.id, {
                "parentId": itemNode.id,
                "imageTypeLimit": 0,
                "enableUserData": false,
                "EnableTotalRecordCount": false,
                "enableImages": false
            })

            print "tvshowsData=", tvshowsData

            if isValid(tvshowsData) and isValidAndNotEmpty(tvshowsData.items)
                for each tvshow in tvshowsData.items
                    ' grab all watched episodes for each series
                    showData = api.shows.GetEpisodes(tvshow.id, {
                        "userId": m.global.session.user.id,
                        "imageTypeLimit": 0,
                        "EnableTotalRecordCount": false,
                        "enableImages": false
                    })

                    if isValid(showData) and isValidAndNotEmpty(showData.items)
                        ' add all played episodes to queue
                        for each episode in showData.items
                            if isValid(episode.userdata) and isValid(episode.userdata.Played)
                                if episode.userdata.Played
                                    m.global.queueManager.callFunc("push", episode)
                                end if
                            end if
                        end for

                    end if
                end for
                m.global.queueManager.callFunc("toggleShuffle")
            end if
            ' else if collectionType = "homevideos" ' also used for a "Photo" library
        else
            print "Quick Play WARNING: Unknown collection type"
        end if
    end sub

    ' Quick Play A UserView.
    ' Play logic depends on "collectionType".
    sub userView(itemNode as object)
        ' play depends on the kind of files inside the collectionfolder
        collectionType = LCase(itemNode.collectionType)
        print "collectionType=", collectionType

        if collectionType = "playlists"
            ' get list of all playlists inside
            playlistData = api.users.GetItemsByQuery(m.global.session.user.id, {
                "parentId": itemNode.id,
                "imageTypeLimit": 0,
                "enableUserData": false,
                "EnableTotalRecordCount": false,
                "enableImages": false
            })

            print "playlistData=", playlistData

            if isValid(playlistData) and isValidAndNotEmpty(playlistData.items)
                ' pick a random playlist
                arrayIndex = Rnd(playlistData.items.count()) - 1
                myPlaylist = playlistData.items[arrayIndex]
                ' grab list of items from playlist
                print "myPlaylist=", myPlaylist
                playlistItems = api.playlists.GetItems(myPlaylist.id, {
                    "userId": m.global.session.user.id,
                    "EnableTotalRecordCount": false
                })
                ' validate api results
                if isValid(playlistItems) and isValidAndNotEmpty(playlistItems.items)
                    for each item in playlistItems.items
                        m.global.queueManager.callFunc("push", item)
                    end for
                    ' don't show shuffle icon for 1 item
                    if playlistItems.items.count() > 1
                        m.global.queueManager.callFunc("toggleShuffle")
                    end if
                end if
            end if
        else
            print "Quick Play CollectionFolder WARNING: Unknown collection type"
        end if
    end sub

end namespace